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Error resilient turbo compression of source codec parameters using inner irregular codes

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2 Author(s)
Schmalen, Laurent ; Inst. of Commun. Syst. & Data Process., RWTH Aachen Univ., Aachen, Germany ; Vary, P.

In this paper, we present a novel near-lossless compression scheme for scalar quantized source codec parameters. The scheme is comparable to a Turbo source coding approach and can inherently incorporate protection against transmission errors. We show that using the concept of EXIT charts and inner irregular convolutional codes of rate > 1, a linear programming optimization problem can be formulated resulting in the minimization of the transmitted number of bits given a certain channel quality. The solution of this problem leads to an irregular inner code offering the best possible compression. The advantage of this method in comparison to a previous proposal is the easy adaptability to varying source conditions.

Published in:

Source and Channel Coding (SCC), 2010 International ITG Conference on

Date of Conference:

18-21 Jan. 2010